Native XML support means that the XML is parsed once when it stored.

原生的XML支持意味着，XML在存储时就被解析了。

youdao

The state of idle file descriptors is known since the pollcache service is notified once when it changes.

空闲文件描述符的状态是已知的，因为在状态改变时会通知 poll 缓存服务。

youdao

It's inevitable: we're all going to screw up at least once when it comes to the highly volatile world of web development.

我们都无法避免：当错误来到这个极不稳定的web开发世界，我们的一切都会变成一团乱麻。

youdao

It can be treated when found early, but once it grows the chances of survival drop sharply.

VOA: special.2009.05.13

Another thing is that, when once an invention is made, it tends to be copied all over the world.

另外，一旦一个发明诞生，它就会被模仿并应用于世界各地。

耶鲁公开课 - 金融市场课程节选

So whether we finish it today, or more likely when we finish it up on Friday, once we get passed isoelectronic atoms, that's it, that's all you need to study for this first exam.

因此，我们也许今天讲完，或者更有可能周五讲完，无论如何，就到我们讲完等电子原子为止，这是你们第一次考试所需要准备的全部内容。

麻省理工公开课 - 化学原理课程节选

The technique has already stood up to legal scrutiny twice once when it supported a conviction, and once when it freed an innocent suspect.

ECONOMIST: Lie detection

What conservatives most want is an uncomplicated system that taxes income only once (when it is earned) at one low rate.

FORBES: Magazine Article

The club hosts the Sky cameras once again when it plays West Ham - on one of the holiest days of the year, Good Friday.

BBC: News | UK | Bells ring out against Sunday soccer